Last name Karelius (Karelius 
) , globally, is a very rare family name. The last name Karelius is characteristic of Sweden, where it is a rare surname, Finland, and the United States, where it is an extremely rare surname. Much less frequently, Karelius is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Karelius | Sweden, Finland, Canada, United States |
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karelius august arntzen Norwegian politician, DK (b. 1802) |
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| karelius nelson American politician, US (b. 1868) |
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| janne karelius Finnish ice hockey player, FI (b. 1965) |
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| saana karelius researcher (ORCID 0000-0002-3957-1746) |
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| j. karelius director and filmmaker |
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| karelius paul college basketball player (2000–2000) Louisiana Tech |
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Ms, Anders, Amanda, Daniel, Janice, Thomas, Tobias, Elaine, Olivia, Mathias, Melissa, Michael, Kathryn, Kenneth, Johanna, Jeffrey, Annastiina, Anne-Maj, Bradford, Jeremiah, Virginia, Veronica, Alaine, Aleksi, Stefan, Sirkka, Ken, Ida, Anne, Adam, Brad, Kris, Lyle, Jani, John, Nina, Charlotte, Earl, Brian, Karin, Karen, Linda, Janne, James, Tiina, Hanna, Martha, Sandra, Maria, and Elizabeth